Electrical receptacle.



R. B. BENJAMIN. ELECTRICAL RECEPTACLE.

APPLICATION FILED JAN-27. I916.

Patented Nov. 20, 1917.

risen sans rarer FFIQ REUBEN B. BENJAMIN, OF CHICAGO, ILLINOIS, ASSIGNOR TO BENJAMIN ELECTRIC MANUFACTURING COMPANY, OF CHICAGO,

ILLINOIS, A CORPORATION ILLINOIS.

nLncaaIcAL nEcnPTAcLE.

Specification of Letters Eatent.

Patented Nov. 2c, 1917.

Application filed January 27, 1916. Serial No. 74,585.

To all whom it may concern:

Be it known'that I, REUBEN B. BENJAMIN,

a citizen of the United States, residing at Chicago, in the county'of Cook and State of Illinois, have invented new and useful Improvements in Electrical Receptacles, of which the following is a full, clear, concise, and exact description, reference being had to the accompanying drawing, forming a part of this specification.

My invention relates to electrical receptacles.

One of the objects of my invention is to provide a receptacle having improved means for retaining a lamp base in place within said receptacle. v

Further objects will appear from the detailed description to follow taken in connection with the appended claims.

In the drawings, in which I have shown two embodiments of my invention-- Figure l is a view partly in axial section of a receptacle embodying my invention;

Fig. 2 is a bottom view of Fig. 1; and

Fig. 3 is a view partly in axial section of another form.

Referring to the drawings in detail and first to the form in Figs. 1 and 2, the receptacle 10 shown comprises a casing 11 which may be of sheet metal, an insulating support 132 within the casing 11, shell and center contacts 13 and 14 supported on the base 12, and a fiber lining 15 between the shell contact 13 and casing 11 for insulating them from each other.

To provide room for the lamp gripping means the shell contact 13 is provided with an integral outwardly bulged portion 16 forming a recess to receive the lamp gripping device which comprises a spring retaining member 17 having a base portion 18 which secured to the insulating support 12 by means of a screw 19 which also extends through the flange 19 or" the shell contact 13 to assist in securing the latter in place on the insulating support 12. The spring retaining member 17 comprises a bowed leaf spring portion 20 which extends inwardly in position to be engaged by the screw threads of the lamp base when the latter is screwed into the socket, the top portion 21 of the leaf spring bearing on the outwardly bulged portion 16, as shown in Fig. 1.

In use the engagement of the leaf spring 18 in this form being located between the.

flange portion 19 and the insulating support 12.

Having thus described my invention what Iclaim as new and'desire to secure by Letters Patent is 1. A receptacle comprising an insulating base, center and screw shell contacts supported thereby, said shell contact being of sheet metal and having an outwardly bulged portion integral therewith forming arecess, and a spring extendingwithin said recess for retaining the lamp in place.

2. A receptacle comprising an insulating base, center and screw shell contacts supported thereby, said shell contact being of sheet metal and having an outwardly bulged longitudinally extending portion integral therewith forming a recess, and a leaf spring extending within said recess for retaining the lamp in place.

3. A receptacle comprising an insulating base, center and screw shell contacts sup ported thereby, said. shell contact being of sheet metal and having an outwardly bulged longitudinally extending portion integral therewith forming a recess, a leaf spring extending within said recess for retaining the lamp in place, said shell having a flange portion and said spring having a base portion, and fastening means extending through said flange and base portions for securing said shell contact and spring on said support.

1. A receptacle comprising an insulating base, center and screw shell contacts supported thereby, said shell contact being of sheet metal and having an outwardlybulged longitudinally extending portion integral therewith forming a recess, a leaf spring extending within said recess for retaining the lamp in place, said shell having a flange portion and said spring having a base portion, and fastening means extending through said flange and base portions for securing said shell contact and spring on said sup-- 01" said base portion being located Within i r- 1 DneL.

An eleetrlcal receptacle eompnsmg an psula mg base, acenter Contact supperted "hereby, a sheet-metal serewshe1l Contact also sup 0r ced tnereby, che thread of sale shell being interrupted to form an inwardly- 

